The 1st column is a textbox column Editable. The second column is a Combobox that displays the list of continents. The 3rd column is a combobox which displays list of countries based on the continent selected in the 2nd column. I want to implement single click for these column. I tried the solution given in this link
Single click edit in WPF DataGrid

But that only works on the first column and not the other two (DataGridTemplateColumn) columns.

How is this possible. Please suggest. The sample XAML and data description is given below.